Performance is certainly better than the 312's that were on there. But I think the pads that were on the 312's were abit crap tbh. They do feel firmer on the brake though, but i've done a fluid change which hasn't been done in at least 2 years. So it could be a number of things adding up to it.
As for sticker, I have thought about a Quattro sticker round the radius closest to the centre of the disc. On the caliper...